Log Message:
-----------
Wording improvement for write-cache disabling instructions.
Modified Files:
--------------
pgsql/doc/src/sgml:
wal.sgml (r1.48 -> r1.49)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/wal.sgml?r1=1.48&r2=1.49)